24
Grant Vortex Outdoor Module
See Fig. 16
1. The kit includes the following items:
Pressure relief valve and automatic air vent
assembly
28 mm Tectite elbow
16 litre expansion vessel with flexible hose and
sealing washer
Filling loop kit
Pressure gauge
7 m head circulating pump with 28 mm gate type valves
15 mm copper pressure relief valve discharge pipe
2 Remove the ½” BSP black iron plug from the front
of the boiler waterway.
3 Fit the ½” BSP straight end of the flexible
expansion vessel hose to the tapping on the front of
the waterway.
4 Remove the nuts and washers from the boiler
combustion door.
5 - BOILER INSTALLATION
5 fit the vessel support bracket to the studs of the
combustion door and refit the nuts and washers.
Tighten to ensure an adequate seal is made.
6 Position the 16 litre expansion vessel onto the
support bracket in front of the boiler combustion
door locating the top of the vessel behind the
control panel first.
7 Screw in the locking screw on the base of the
bracket to secure the vessel in place.
8 Fit the ¾” BSP connection of the flexible
expansion vessel hose to the vessel using the black
rubber washer supplied and tighten the nut.
9 Push fit the 28 mm Tectite elbow to the boiler flow
connection.
10 Push fit the automatic air vent/pressure relief valve
assembly into the Tectite elbow.
11 Fit both 28 mm pump valves to the circulating
pump using the sealing washers supplied.
12 Fit the pump assembly to the automatic air vent/
pressure relief valve assembly ensuring that the
pump shaft is horizontal and the pump motor is
facing towards the front of the boiler. The flow
arrow on the body of the pump must face in the
direction of flow away from the boiler connection.
13 Fit the pressure relief valve discharge pipe to the
pressure relief valve using the nut and olive
supplied. Route the discharge pipe through the slot
in the base of the right hand side panel. Push the
panel insulation back to expose the slot.
14 The circulating pump may be wired into the boiler
control panel if required. Refer to Section 9.
Sealed system kit - 26/36 and 36/46
5.5a
Fig. 16 - Sealed system pump assembly
To Next Page
Loading...
